Improvement in steam-generators



To all whom it 'may concern una eine.

'EDWARD Bomann or rITTsBURe, PENNSYLVANIA. l'

LettcrsfPatentNo. 97,865, elated December 14, 1869.

IMPROVEMENT IN STEAM-GENERATORS.

' The Schedule referred to in these Iietters Patent and making partofthe same Be it known that I, EDWARD BOURNE, of the cit A of Pittsburg,in the county of Allegheny, and State 1 of Pennsylvania, have invented anew and useful Improvement in Steam-Generators; and I hereby declarethat the following is a full, clear, andexact description thereof',reference being,l had to the accompanying drawings,formiug part of thisspecification, and to the letters of reference lna'l'led thereon;

The. nature of my invention* consists in forming a steamf generator, by`attaching to and beneath the steam-drum one or more short cylindricalboilers, each provided with a system of vertical fines, for the passageof the heat through and between the boilers. Y

To 'enable others to understand, make, and use my improvedsteam-generator, I will proceed to describe its construction, byreference to the annexed drawings, in which@` Figure 1 representsal1-elevation of the apparatus,

as inclosed in a furnace.

`Figure 2 represents a vertical section, and

Figure 3 a transverse section ofthe same.

Figure 4 represents a section through one of the parts constructed withconical' fines. y

I construct my apparatus by first` making a steamdrum or receiver, A, ofany suitable shape and size.

Beneath this, and attached thereto by means of short connecting-pipes B,rare `placed one or more shallow cylindrical or other shaped boilers, C,each provided with a number of vertical dues, D, so arranged as that thespace between the dues, in the upper boiler, will be directly on avertical line above the lines in the herein deemed necessary.

one beneath it, by which arrangement the flame .and v heated products ofcombustion will be made to ascendin-a tortuous or spira-lv passage `ontheir way to the chimney.

The connecting-pipes B are divided by a central vertical partition, e,so as to form, in fact, two pipes, one of which extends only from boilerto boiler, while the other continues nearly to the bottom. By thisconstruction of the connecting-pipes, the steam, as it is generated,ascends through the short pipes into thereceiver. The supply of waterpassing downward, at the same time, through the long pipes, tends tokeep up a continual and rapid circnlation.

As this construction of the connecting-pipes, and the operation of thesame, is fully set forth in an ap plication for a patent forsteam-generators filed by me, the 22d day of March, 1869, and as saidapplication was allowed, J nly 24, 1869, no further description isHaving described Athe nature of my invention,

I claim a steam-generator, formed by attaching to and beneath thesteam-drum or receiver, by means of short pipes, one ormore boilers,provided with a system of dues, eac-h boiler being constructed,arranged, and operating, with respect to the steam-receiver,substantially'n the manner herein set forth and shown in the drawings. r

EDWARD BOURNE.

Witnesses:

, .IosLrH W. Enns, J. B. WHALEY,

